The Euro is the official currency of the European Union. It has been in circulation as electronic currency since 1999 and as physical banknotes and coins since 2002. Its ISO 4217 code is EUR, and it is typically represented by the symbol €. The issuance and management of the Euro are jointly handled by the European Central Bank and the central banks of the individual countries within the Eurozone. Currently, there are banknotes in denominations of 5, 10, 20, 50, 100, 200, and 500 Euros. Additionally, there are coins in values of 1, 2, 5, 10, 20, 50 Euro cents, and 1, 2 Euros. The Euro ranks second globally in terms of trading volume, and all money changers in Hong Kong support the exchange between the Hong Kong Dollar and Euro.

The Indonesian Rupiah, commonly known as the Indonesian Rupiah, is the circulating currency of Indonesia. The Rupiah has been in circulation since 1946. Its ISO 4217 code is IDR, and it is commonly represented by the symbol Rp. The issuance and management of the Indonesian Rupiah are the responsibility of Bank Indonesia. Currently, there are banknotes in denominations of 1000, 2000, 5000, 10,000, 20,000, 50,000, and 100,000 Rupiah. Additionally, there are coins in values of 100, 200, 500, and 1000 Rupiah. While the Indonesian Rupiah may not be a globally mainstream trading currency, the demand for its exchange remains robust in Hong Kong due to the presence of over 160,000 Indonesian residents. Currently, all money changers in Hong Kong facilitate the exchange of Indonesian Rupiah.